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#ifndef CYGONCE_V85X_V850_SERIAL_H
#define CYGONCE_V85X_V850_SERIAL_H
// ====================================================================
//
// v850_ceb_serial.h
//
// Device I/O - Description of NEC V850 serial hardware
//
// ====================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later
// version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License
// along with eCos; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// As a special exception, if other files instantiate templates or use
// macros or inline functions from this file, or you compile this file
// and link it with other works to produce a work based on this file,
// this file does not by itself cause the resulting work to be covered by
// the GNU General Public License. However the source code for this file
// must still be made available in accordance with section (3) of the GNU
// General Public License v2.
//
// This exception does not invalidate any other reasons why a work based
// on this file might be covered by the GNU General Public License.
// -------------------------------------------
// ####ECOSGPLCOPYRIGHTEND####
// ====================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): gthomas
// Contributors: gthomas,jlarmour
// Date: 2001-03-21
// Purpose: Internal interfaces for serial I/O drivers
// Description:
//
//####DESCRIPTIONEND####
//
// ====================================================================
// Description of serial ports on NEC V850/SA1 & SB1
#include <pkgconf/system.h>
#include CYGBLD_HAL_TARGET_H
#include <cyg/hal/v850_common.h>
struct serial_port {
unsigned char asim; // Serial interface mode
unsigned char _filler0;
unsigned char asis; // Serial interface status
unsigned char _filler1;
unsigned char brgc; // Baud rate control
unsigned char _filler2;
unsigned char txs; // Transmit shift register
unsigned char _filler3;
unsigned char rxs; // Receive shift register
unsigned char _filler4[5];
unsigned char brgm; // Baud rate mode
unsigned char _filler5;
#if CYGINT_HAL_V850_VARIANT_SB1
unsigned char _filler6[0x10];
unsigned char brgm1; // Baud rate overflow
#endif
};
// Relative interrupt numbers
#define INT_ERR 0 // Receive error condition
#define INT_Rx 1 // Receive data
#define INT_Tx 2 // Transmit data
// Serial interface mode
#define ASIM_TxRx_MASK (3<<6) // Receive & Transmit enables
#define ASIM_TxRx_Rx (1<<6) // Receive enable
#define ASIM_TxRx_Tx (2<<6) // Transmit enable
#define ASIM_Parity_MASK (3<<4) // Parity mode bits
#define ASIM_Parity_none (0<<4) // No parity
#define ASIM_Parity_space (1<<4) // Send zero bit, ignore errors
#define ASIM_Parity_odd (2<<4) // Odd parity
#define ASIM_Parity_even (3<<4) // Even parity
#define ASIM_Length_MASK (1<<3) // Character length select
#define ASIM_Length_7 (0<<3) // 7 bit chars
#define ASIM_Length_8 (1<<3) // 8 bit chars
#define ASIM_Stop_MASK (1<<2) // Stop bit select
#define ASIM_Stop_1 (0<<2) // 1 stop bit
#define ASIM_Stop_2 (1<<2) // 2 stop bits
#define ASIM_Error_MASK (1<<1) // Receive error select
#define ASIM_Error_enable (0<<1) // Issue interrupt on receive error
#define ASIM_Error_disable (1<<1) // No interrupts on receive error
// Serial interface status (errors only)
#define ASIS_OVE (1<<0) // Overrun error
#define ASIS_FE (1<<1) // Framing error
#define ASIS_PE (1<<2) // Parity error
static unsigned char select_word_length[] = {
0xFF, // 5 bits / word (char)
0xFF,
ASIM_Length_7,
ASIM_Length_8
};
static unsigned char select_stop_bits[] = {
0,
ASIM_Stop_1, // 1 stop bit
0xFF, // 1.5 stop bit
ASIM_Stop_2 // 2 stop bits
};
static unsigned char select_parity[] = {
ASIM_Parity_none, // No parity
ASIM_Parity_even, // Even parity
ASIM_Parity_odd, // Odd parity
0xFF, // Mark parity
ASIM_Parity_space, // Space parity
};
static struct v850_baud {
unsigned int count;
unsigned int divisor;
} select_baud[] = {
// Baud rate values, using defined system clock
#define BAUDCOUNT(X) ((CYGHWR_HAL_V85X_CPU_FREQ/2)/(X))
{0, 0}, // Unused
{0, 0}, // 50
{0, 0}, // 75
{0, 0}, // 110
{0, 0}, // 134.5
{0, 0}, // 150
{0, 0}, // 200
{0, 0}, // 300
{0, 0}, // 600
{BAUDCOUNT(1200), 1}, // 1200
{0, 0}, // 1800
{BAUDCOUNT(2400), 1}, // 2400
{0, 0}, // 3600
{BAUDCOUNT(4800), 1}, // 4800
{0, 0}, // 7200
{BAUDCOUNT(9600), 1}, // 9600
{0, 0}, // 14400
{BAUDCOUNT(19200), 1}, // 19200
{BAUDCOUNT(38400), 1}, // 38400
{0, 0}, // 57600
{0, 0}, // 115200
{0, 0}, // 230400
};
#endif // CYGONCE_V85X_V850_SERIAL_H
// EOF v85x_v850_serial.h
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